Electronic state of superconductivity in line nodal material CaSb2 under pressure up to 4.2 GPa
Abstract
We report the results of resistance measurements under pressure up to 4.2\,GPa on single-crystalline CaSb2 , which shows the maximum of superconducting transition temperature Tc at 3.1\,GPa. At room temperature, R(P) shows a subtle anomaly at 3.1\,GPa. However, Bloch-Gr\"uneisen analysis of R(T) indicates that the electronic state does not change significantly across 3.1\,GPa.
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